Re: [PATCH reworded] x86/kbuild: enable modversions for symbols exported from asm
From: Oliver Hartkopp <socketcan@hartkopp.net>
Date: 2016-11-21 16:54:35
Also in:
linux-kbuild, lkml
On 11/21/2016 03:52 PM, Adam Borowski wrote:
Commit 4efca4ed ("kbuild: modversions for EXPORT_SYMBOL() for asm") adds
modversion support for symbols exported from asm files. Architectures
must include C-style declarations for those symbols in asm/asm-prototypes.h
in order for them to be versioned.
Add these declarations for x86, and an architecture-independent file that
can be used for common symbols.
User impact: kernels may fail to load modules at all when
CONFIG_MODVERSIONS=y.late but great :-) Thanks for fixing this! Tested-by: Oliver Hartkopp <socketcan@hartkopp.net> (if you like) Regards, Oliver
quoted hunk ↗ jump to hunk
Signed-off-by: Adam Borowski <redacted> Tested-by: Kalle Valo <redacted> Acked-by: Nicholas Piggin <npiggin@gmail.com> Tested-by: Peter Wu <redacted> --- arch/x86/include/asm/asm-prototypes.h | 12 ++++++++++++ include/asm-generic/asm-prototypes.h | 7 +++++++ 2 files changed, 19 insertions(+) create mode 100644 arch/x86/include/asm/asm-prototypes.h create mode 100644 include/asm-generic/asm-prototypes.hdiff --git a/arch/x86/include/asm/asm-prototypes.h b/arch/x86/include/asm/asm-prototypes.h new file mode 100644 index 0000000..ae87224 --- /dev/null +++ b/arch/x86/include/asm/asm-prototypes.h@@ -0,0 +1,12 @@ +#include <asm/ftrace.h> +#include <asm/uaccess.h> +#include <asm/string.h> +#include <asm/page.h> +#include <asm/checksum.h> + +#include <asm-generic/asm-prototypes.h> + +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/special_insns.h> +#include <asm/preempt.h>diff --git a/include/asm-generic/asm-prototypes.h b/include/asm-generic/asm-prototypes.h new file mode 100644 index 0000000..df13637 --- /dev/null +++ b/include/asm-generic/asm-prototypes.h@@ -0,0 +1,7 @@ +#include <linux/bitops.h> +extern void *__memset(void *, int, __kernel_size_t); +extern void *__memcpy(void *, const void *, __kernel_size_t); +extern void *__memmove(void *, const void *, __kernel_size_t); +extern void *memset(void *, int, __kernel_size_t); +extern void *memcpy(void *, const void *, __kernel_size_t); +extern void *memmove(void *, const void *, __kernel_size_t);